Results 91 to 100 of about 271,893 (300)

Interacting Supernovae: Types IIn and Ibn

, 2016
Supernovae (SNe) that show evidence of strong shock interaction between their ejecta and pre-existing, slower circumstellar material (CSM) constitute an interesting, diverse, and still poorly understood category of explosive transients.
A Gal-Yam, A Gal-Yam, A Gal-Yam, A Miller, A Pastorello, A Pastorello, A Pastorello, A Rest, AJ Marle van, AV Filippenko, C Fransson, C Gall, C Meakin, CS Kochanek, D Milisavljevic, DC Leonard, E Quataert, EM Schlegel, EO Ofek, EO Ofek, H Sana, I Aretxaga, I Shivvers, JC Mauerhan, JC Mauerhan, JC Mauerhan, JL Prieto, JM Silverman, K Nomoto, L Dessart, M Fraser, M Fraser, M Pozzo, M Stritzinger, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, N Smith, NN Chugai, NN Chugai, NN Chugai, NN Chugai, O Fox, PWA Roming, R Margutti, RD Gehrz, RJ Foley, S Benetti, SC Yoon, SE Woosley, SJ Smartt, T Matheson, VS Niemela, WD Arnett   +64 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Compton scattering X-ray imaging system for material detection through 3 mm aluminum shielding for potential future space application

Physics Letters B
This paper explores the application of Compton scattering imaging for the active detection of space debris at long distances and through dense metallic shielding.
Yun Li, Tong Su, Lizhi Sheng, Ruili Zhang, Pengfei Qiang, Rengzhou Zheng, Bo Wang, Yongqing Yan, Yue Li, Yalong Zhang   +9 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Anomaly Detection Method for Hydropower Units Based on KSQDC-ADEAD Under Complex Operating Conditions

Sensors
The safe and stable operation of hydropower units, as core equipment in clean energy systems, is crucial for power system security. However, anomaly detection under complex operating conditions remains a technical challenge in this field.
Tongqiang Yi, Xiaowu Zhao, Yongjie Shi, Xiangnan Jing, Wenyang Lei, Jiang Guo, Yang Meng, Zhengyu Zhang   +7 more
doaj   +1 more source

INTEGRAL and New Classes of High-Mass X-ray Binaries

, 2007
The gamma-ray observatory INTEGRAL, launched in October 2002, produces a wealth of discoveries and new results on compact high energy Galactic objects, nuclear gamma-ray line emission, diffuse line and continuum emission, cosmic background radiation, AGN
Christoph Winkler, Christopher R. Gelino, Dawn Gelino, Reba M. Bandyopadhyay, Stefanie Wachter   +4 more
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Influence of sinusoidal and square voltages on partial discharge inception in geometries with point-like termination

High Voltage, 2018
High-voltage equipment involves both electrical and electronic components. In electrical power network, which consists of rotating machine, power transformers and transmission lines, field enhancement at critical regions can lead to local breakdown ...
Abdelghaffar A. Abdelmalik
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

The Extremes of Thermonuclear Supernovae

, 2017
The majority of thermonuclear explosions in the Universe seem to proceed in a rather standardised way, as explosions of carbon-oxygen (CO) white dwarfs in binary systems, leading to 'normal' Type Ia supernovae (SNe Ia).
A Khokhlov, AM Khokhlov, AV Filippenko, AV Filippenko, B Leibundgut, B Leibundgut, D Branch, DE Osterbrock, DJ Jeffery, G Gómez, G Vaucouleurs de, J Spyromilio, JH Hough, M Fink, M Ganeshalingam, MM Phillips, MM Phillips, MM Phillips, PA Mazzali, PA Mazzali, RA Chevalier, RA Fesen, RA Scalzo, S Chandrasekhar, S Cristiani, SE Woosley, WD Arnett   +26 more
core   +1 more source